Spinning stop motion



Aug. 11, 1936. AH 2,050,580

SPINNING STOP MOTION Filed Aug. .19, 1935 Patented Aug. 11, 1936 UNITED STATES Parser Price 2 Claims.

This invention relates to spinning machines and has special reference to a stop motion for preventing overrunning of the builder mechanism in such machines. More particularly the invention relates to improvements on my prior Patent No. 1,753,247, for Spinning stop motion, granted April 8, 1930.

The principal object of the present invention is to provide an improved stop motion for spin- 1 ning machines which is actuated directly from the builder mechanism of the machine and which, when thus actuated, will efiect opening of the circuit of the motor driving the spinning machine.

A second important object of this invention is to provide a stop motion of this character which is actuated upon the traverse element common to builder motions reaching the limit of its movement.

With the above and other objects in view, the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawing, and specifically claimed.

In the accompanying drawing, like characters or" reference indicate like parts in the several views, and:-

Figure 1 is an elevation of a portion of a spinning machine showing the builder motion and the parts of the invention associated therewith.

Figure 2 is an enlarged detail view, partly in elevation and partly in section, of a certain circuit breaker means used herewith.

Figure 3 is a wiring diagram showing the electric circuits of the invention.

Figure 4 is an enlarged detail view illustrating a bracket used in connection with the invention, and parts attached to said bracket.

In the embodiment of the invention as illustrated in the accompanying drawing there is shown a builder mechanism of ordinary type including a Weight lever I0 which is oscillated by a cam II and has a traverse mechanism including the traverse guide l2 and the traverse slide 13 attached thereto.

Mounted on the lever I0 is an arm or bracket M which extends across one end of the guide 12. On the bracket i4 is pivoted an arm l5 which normally diverges from the bracket l4 and lies against or close to the end of the guide l2 so that 50 the slide l 3 will contact with the arm l5 and move it toward the bracket l4 as the slide reaches the limit of its movement. The arm I5 is preferably U-shaped in cross section so as to straddle the bracket I4. Clamped to the bracket I4 is one end of a Bowden wire tube IS. A switch housing ll is carried by the other end of the tube l6 and is fixed to any suitable object such as a part of the spinning machine. In the housing I! is fixed a pair of spaced contacts l8 adapted to be bridged by a movable contact !9, which is attached to a 5 vertically movable bar 21, formed of vulcanite or other non-conductor of electricity, which bar is slidably mounted in a block 28 being supported on a bracket 28a within the housing l1. Connected to the lower end of the bar 27 is a head 10 29, through which the Bowden wire passes, so that its end bears against the bar 21. Interposed between the head 29 and the bracket 28a, and surrounding the bar 21, is a coil spring 2| which tends to hold the contact 59 in engagement with the contacts l8, and to urge the Bowden wire outwardly of the casing H. The outer end of the Bowden wire is pivoted to the arm l5, as at lfia. As a result of this arrangement the upper end of the arm 15 is normally held away from the arm H5. 7

The contacts I8 are connected in a circuit 22 I including the winding of an electro-magnetically operated switch 24 normally held closed, when the winding 23 is energized. The switch 26 controls the circuit 25 of the driving motor 26 which operates the spinning machine.

While the present drawing shows a particular form of builder motion it is to be understood that the device may be used with any form of builder motion having a moving part which is fed gradually in one direction as the bobbins build up, such part being termed in general a gradually fed traverse member.

With this construction it will be plain that as the slide l3 reaches the end of the traversing movement it will contact with the arm I5 and effect pushing of the wire 29 and consequent breaking of the circuit 22. Breaking this circuit will deenergize the winding 23 and allow the switch 24 to open thus breaking the circuit 25 through the motor 25 which will stop.

There has thus been provided a simple and efficient device of the kind described and for the purpose specified.

What is claimed is:

1. In a motor driven machine having a motor circuit normally closed by a magnetically closed switch, the combination of a builder motion having a gradually fed traverse member; of an electric circuit controlling said switch and including a normally closed circuit breaker, a bracket fixed to the builder motion, an arm pivoted at one end to the bracket and lying in the path of said memher, and an operative connection between said 55 arm and circuit breaker to open the latter as the arm is moved by said member.

2. In a motor driven machine having a motor circuit normally closed by a magnetically closed switch, the combination of a builder motion having a gradually fed traverse member; of an electric circuit controlling said switch and including a normally closed circuit breaker, a bracket fixed to the builder motion, an arm pivoted at one end to the bracket and lying in the path of said member, said circuit breaker including a pair of fixed contacts and a movable bridging contact, a cas-- ing enclosing said circuit breaker, a Bowden wire tube fixed to said bracket and casing, and a Bowden wire extending through said tube and having one end fixed to the bridging contact and its other end arranged to be moved by said arm.

FLOYD T. NOAH. 

